I been eyeballin that mountain and twilight pillar and some other routes on NCP for aWhile!
I know some folks that have done it and said good things.My friend Pat has done it, I prob wont talk w him for aWhile but when I do I will hit him up. I know thats not much help, sorry
I bet Chief knows about it...
Found this....
http://www.supertopo.com/climbing/threa ... &tn=0&mr=0
This may be what you want
Also,
heres a thread about NCP's Firebird Ridge. Cant find much else on Twilight, but its somethin
http://www.supertopo.com/climbing/threa ... #msg901738
Hope this helps.
What a great mountain